Hi there
I have gone through scope of the work extremely carefully
We are an agency based at kolkata, India.
We work in Platforms android and Mobile app development
We can fulfill your all requirements
I can compPlus

i don't get what your trying to do here, can you record in mandarin and explain it to me. my mandarin isn't too good though, just tell me the objectives here, you don't sound like you understand technicals
also yourPlus